Bump com.amazonaws:aws-java-sdk from 1.12.399 to 1.12.787

Bumps [com.amazonaws:aws-java-sdk](https://github.com/aws/aws-sdk-java) from 1.12.399 to 1.12.787.
- [Changelog](https://github.com/aws/aws-sdk-java/blob/master/CHANGELOG.md)
- [Commits](aws/aws-sdk-java@1.12.399...1.12.787)

---
updated-dependencies:
- dependency-name: com.amazonaws:aws-java-sdk
  dependency-version: 1.12.787
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

build.gradle

@@ -38,8 +38,8 @@ dependencies {
     implementation "org.apache.hadoop:hadoop-hdfs:2.7.5"
 
     implementation('org.embulk:embulk-util-aws-credentials:0.4.1')
-    implementation "com.amazonaws:aws-java-sdk:1.12.399"
-    implementation "com.amazonaws:aws-java-sdk-s3:1.12.399"
+    implementation "com.amazonaws:aws-java-sdk:1.12.787"
+    implementation "com.amazonaws:aws-java-sdk-s3:1.12.787"
 
     implementation("org.apache.hadoop:hadoop-aws:2.7.5") {
         exclude module: 'com.amazonaws:aws-java-sdk'